I don't really know if Jaden wants attention after having his cousin in our house. My sister-in-law delivered her baby boy last Friday morning. Right now, we are so watchful of Jaden's action because he is throwing whatever objects on his hands to his cousin. We are always trying to explain him that he must be gentle to his cousin. Every actions he has, we need to talk to him about his baby cousin.
I think he is coping little by little. I am pretty sure that he is adjusting to have another baby at home. But I don't think if he is looking for attention from us. He is easy to understand what we told him and I believe he does learning everyday.